html,
body,
ol,
ul,
li,
img,
div,
span,
h1,
h2,
h3,
h4,
h5,
h6,
dl,
dt,
dd,
a,
p {
    margin: 0;
    padding: 0;
}

html,
body {
    font-family: '微软雅黑';
    height: 150%;
}

ul,
ol,
li {
    list-style: none;
}

a {
    text-decoration: none;
}

a:active,
a:hover,
a:link,
a:visited {
    color: darkblue;
}

.clear:after {
    display: block;
    content: "";
    clear: both;
}